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Temperature and Spray Foam Insulation

Before you run out and buy a spray foam insulation kit, you should probably take a peek at the thermometer and check the temperature. Spray foam insulation works best in a comfortable environment. For the best results, you should apply it when it’s between 60 and 80 degrees Fahrenheit. If the ambient temperature is hovering in that range, you’ll be fine, but if you’re working in hotter or cooler temperatures, you’ll need heating or cooling equipment on hand.

Too Cold of an Environment

 

Applying spray foam in cold weather can be tricky. If the surface is cold, but the air is hot, you can get condensation built up which would reduce adhesion and cause problems during the installation. It can also cause the curing time to be longer for the foam. If you’re not sure if the walls are too damp or if it’s too cold, do a test patch. If it properly adheres, you can continue installing the insulation. If it doesn’t, you’ll know that you need to make environmental adjustments to reach the right temperature.

Too Hot of an Environment

 

If it’s too hot when you spray the insulation, you’ll have other problems. The pressure in the canisters will be increased which will cause a spike in flow rates. The faster flow can cause less control over the spray. If it’s warm in the space, the foam will also cure faster, sometimes before the foam can bond to the substrate it is sprayed on or before it completely rises. If this happens, it won’t reach it’s full R-value, causing a drop in value of the investment.

Care and Storage

 

If you have leftover spray foam insulation or if the weather just won’t cooperate, it’s important to care for and store it properly. Liquid components in the tanks will separate if stored in too cool of an environment. The result is cured foam that’s dark with a crusty surface. If the tanks are too warm when stored, the liquid will also separate. You can cool the tanks with water and shake them vigorously to prevent problems.

It’s important to note that the tanks should always be stored upright to prevent a loss of pressure. If you live in a humid area, you should use extra petroleum jelly on the gun to keep it lubricated and operating well.

When in doubt, do a patch test to make sure the spray foam adheres properly and did not spoil in storage. It is important for spray foam to properly rise in order to get the maximum R-value and to get the best performance.